mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 08:23:21 +01:00
31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; RUN: opt < %s -analyze -scalar-evolution
|
|
; PR4537
|
|
|
|
; ModuleID = 'b.bc'
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
define i32 @test() {
|
|
entry:
|
|
%0 = load i32** undef, align 8 ; <i32*> [#uses=1]
|
|
%1 = ptrtoint i32* %0 to i64 ; <i64> [#uses=1]
|
|
%2 = sub i64 undef, %1 ; <i64> [#uses=1]
|
|
%3 = lshr i64 %2, 3 ; <i64> [#uses=1]
|
|
%4 = trunc i64 %3 to i32 ; <i32> [#uses=2]
|
|
br i1 undef, label %bb10, label %bb4.i
|
|
|
|
bb4.i: ; preds = %bb4.i, %entry
|
|
%i.0.i6 = phi i32 [ %8, %bb4.i ], [ 0, %entry ] ; <i32> [#uses=2]
|
|
%5 = sub i32 %4, %i.0.i6 ; <i32> [#uses=1]
|
|
%6 = sext i32 %5 to i64 ; <i64> [#uses=1]
|
|
%7 = udiv i64 undef, %6 ; <i64> [#uses=1]
|
|
%8 = add i32 %i.0.i6, 1 ; <i32> [#uses=2]
|
|
%phitmp = icmp eq i64 %7, 0 ; <i1> [#uses=1]
|
|
%.not.i = icmp sge i32 %8, %4 ; <i1> [#uses=1]
|
|
%or.cond.i = or i1 %phitmp, %.not.i ; <i1> [#uses=1]
|
|
br i1 %or.cond.i, label %bb10, label %bb4.i
|
|
|
|
bb10: ; preds = %bb4.i, %entry
|
|
unreachable
|
|
}
|